标题：A Method of DTM Construction Based on Quadrangular Irregular Networks and Related Error Analysis作者：Kang, Mengjun; Wang, Mingjun; Du, Qingyun
来源出版物：PLOS ONE 卷：10 期：5 文献编号：e0127592 DOI：10.1371/journal.pone.0127592 出版年：MAY 21 2015
摘要：A new method of DTM construction based on quadrangular irregular networks (QINs) that considers all the original data points and has a topological matrix is presented. A numerical test and a real-world example are used to comparatively analyse the accuracy of QINs against classical interpolation methods and other DTM representation methods, including SPLINE, KRIGING and triangulated irregular networks (TINs). The numerical test finds that the QIN method is the second-most accurate of the four methods. In the real-world example, DTMs are constructed using QINs and the three classical interpolation methods. The results indicate that the QIN method is the most accurate method tested. The difference in accuracy rank seems to be caused by the locations of the data points sampled. Although the QIN method has drawbacks, it is an alternative method for DTM construction.
入藏号：WOS:000356444000079
文献类型：Article
语种：English
扩展关键词：DIGITAL ELEVATION MODELS; DEM CONSTRUCTION; INTERPOLATION; ACCURACY; TERRAIN
通讯作者地址：Kang, Mengjun; Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.
电子邮件地址：mengjunk@163.com
地址：
[Kang, Mengjun; Wang, Mingjun; Du, Qingyun] Wuhan Univ, Sch Resource & Environm Sci, Wuhan 430079, Peoples R China.
[Kang, Mengjun; Wang, Mingjun; Du, Qingyun] Wuhan Univ, Key Lab Geog Informat Syst, Minist Educ, Wuhan 430079, Peoples R China.
研究方向：Science & Technology - Other Topics
ISSN：1932-6203
